olive oil • smoked streaky bacon, finely chopped • medium onions, finely chopped • carrots, trimmed and finely chopped • celery sticks, finely chopped • garlic cloves, finely chopped • rosemary, leaves picked and finely chopped • beef mince • for bolonaise sauce • tins plum tomatoes • small pack basil, leaves picked, 3/4 finely chopped and the rest left whole for garnish • dried oregano •